YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1960 | ----- | z | 30.00 | x | 37.42 | 42.27 | 49.48 | b | 61.07 | b | 62.10 | 61.10 | 57.90 | 46.84 | 40.83 | a | 29.55 | 48.85 | b | |||||||
1961 | 33.16 | 33.50 | 36.87 | 46.27 | 51.56 | d | 59.50 | 61.26 | 60.90 | 56.66 | a | 48.81 | 37.69 | a | 33.94 | 46.68 | ||||||||||
1962 | 30.94 | 34.46 | 32.32 | 46.83 | a | 48.94 | 57.43 | 62.19 | 62.63 | a | 59.17 | 50.13 | a | 42.83 | a | 36.16 | 47.00 | |||||||||
1963 | 32.90 | 36.14 | 37.61 | 41.90 | 54.06 | 56.43 | 63.68 | 61.03 | 57.38 | a | 51.60 | a | 39.73 | 32.03 | a | 47.04 | ||||||||||
1964 | 28.74 | 25.52 | 32.00 | 36.53 | 48.55 | 57.43 | 62.81 | 60.32 | 56.17 | 48.94 | 35.80 | 33.94 | 43.90 | |||||||||||||
1965 | 33.55 | 31.96 | 34.97 | 42.30 | 49.58 | 55.47 | 61.48 | 59.94 | 54.43 | 47.90 | 43.77 | 36.33 | a | 45.97 | ||||||||||||
1966 | 28.68 | 28.89 | 38.26 | 44.40 | 53.52 | 59.97 | 62.28 | b | 60.35 | 56.63 | 47.45 | 42.40 | 32.87 | 46.31 | ||||||||||||
1967 | 31.68 | 34.93 | 40.70 | a | 43.13 | 48.84 | 57.70 | 61.58 | 59.23 | 55.70 | 48.39 | 41.60 | 31.77 | 46.27 | ||||||||||||
1968 | 34.13 | 37.34 | 37.00 | 39.23 | 45.45 | 58.90 | 59.50 | a | 57.77 | 55.10 | a | 49.42 | 35.43 | 30.03 | a | 44.94 | ||||||||||
1969 | 36.65 | 32.71 | 33.23 | 42.93 | 50.83 | a | 59.17 | 63.61 | 62.97 | 57.77 | 48.06 | 38.63 | 34.90 | 46.79 | ||||||||||||
1970 | 29.81 | 36.04 | 34.35 | 39.60 | 51.45 | 58.83 | 62.39 | 59.42 | 55.57 | 42.77 | 38.17 | a | 34.65 | 45.25 | ||||||||||||
1971 | 31.00 | 31.29 | 34.58 | 41.23 | 48.87 | 57.77 | 62.29 | 58.26 | 57.52 | a | 44.16 | 36.90 | 33.45 | 44.78 | ||||||||||||
1972 | 32.13 | 35.93 | 43.00 | 44.63 | 49.71 | 57.62 | a | 63.10 | 60.32 | 56.40 | 49.52 | 33.24 | a | 32.80 | a | 46.53 | ||||||||||
1973 | 30.55 | 34.11 | 34.23 | 39.70 | c | 50.55 | b | 59.70 | 62.16 | 60.16 | 56.97 | a | 49.13 | 41.30 | 32.87 | 45.95 | ||||||||||
1974 | 33.19 | 30.81 | b | 39.45 | 42.44 | c | 51.06 | 63.32 | b | 61.00 | a | 59.19 | 56.27 | 46.61 | 36.73 | 26.45 | b | 45.54 | ||||||||
1975 | 30.16 | l | 31.04 | 36.40 | a | 39.87 | 46.74 | 57.37 | 60.48 | 58.94 | 55.23 | 46.10 | 35.43 | 31.77 | a | 45.40 | a | |||||||||
1976 | 27.74 | 36.14 | 35.06 | 41.53 | 48.06 | 58.33 | 61.29 | 60.77 | 55.77 | 44.97 | 37.03 | 32.26 | 44.91 | |||||||||||||
1977 | 32.58 | 33.00 | a | 34.35 | 40.70 | 49.06 | 58.77 | 62.97 | 62.84 | 59.33 | 51.55 | 39.73 | 37.06 | 46.83 | ||||||||||||
1978 | 34.06 | 33.39 | 39.23 | 44.17 | 49.87 | 60.41 | c | 62.81 | 59.94 | 56.83 | 50.19 | 41.00 | 30.74 | 46.89 | ||||||||||||
1979 | 30.42 | 34.43 | 36.00 | 43.27 | 49.42 | 59.70 | 63.77 | 59.42 | 57.97 | 51.39 | 35.60 | 33.68 | 46.25 | |||||||||||||
1980 | 34.97 | 37.86 | 37.45 | 41.67 | 48.55 | 59.90 | 64.71 | 61.42 | 58.23 | 46.61 | 38.13 | 39.06 | 47.38 | |||||||||||||
1981 | 36.48 | 37.29 | 36.61 | 51.17 | 52.68 | 60.60 | 63.00 | 61.77 | 57.77 | 49.48 | 40.90 | 35.19 | 48.58 | |||||||||||||
1982 | 34.40 | a | 36.43 | 37.52 | 43.00 | 49.97 | 59.31 | a | 62.61 | 61.13 | 58.38 | a | 46.16 | 40.10 | 31.10 | 46.68 | ||||||||||
1983 | 31.65 | 34.00 | 36.39 | 39.73 | 48.45 | 56.47 | 62.81 | 60.71 | 59.70 | 50.06 | 38.83 | a | 36.65 | 46.29 | ||||||||||||
1984 | 32.61 | 30.97 | 37.81 | 42.57 | 57.53 | a | 57.97 | 56.84 | 56.81 | 53.87 | 44.42 | 36.90 | 33.58 | 45.16 | ||||||||||||
1985 | 31.03 | 30.29 | 36.97 | 43.90 | 50.94 | 59.73 | 62.97 | 60.16 | 53.73 | 46.84 | 39.23 | 31.87 | 45.64 | |||||||||||||
1986 | 35.83 | a | 36.75 | 40.94 | 47.62 | a | 52.26 | 59.53 | 60.94 | 61.45 | 56.37 | 46.55 | 39.87 | 32.80 | a | 47.57 | ||||||||||
1987 | 31.19 | 33.89 | 34.58 | 43.47 | 49.10 | 57.77 | 62.68 | 58.87 | 55.53 | 52.55 | 39.00 | a | 30.65 | 45.77 | ||||||||||||
1988 | 31.86 | c | 35.48 | 35.74 | 41.23 | 50.35 | 59.27 | 61.87 | 61.23 | 56.07 | 50.68 | 38.48 | a | 30.97 | 46.10 | |||||||||||
1989 | 31.60 | a | 36.79 | 42.52 | 49.13 | 52.32 | 59.23 | 63.26 | 60.48 | 57.63 | 47.61 | 39.63 | 31.17 | a | 47.61 | |||||||||||
1990 | 30.37 | a | 30.54 | 39.10 | 46.13 | 51.84 | 65.07 | 61.83 | b | 59.19 | 58.47 | 48.00 | 41.40 | 33.55 | 47.12 | |||||||||||
1991 | 31.81 | 36.36 | 34.35 | 42.57 | 49.97 | 54.67 | 61.68 | 60.45 | 56.00 | 49.81 | 37.20 | 33.40 | a | 45.69 | ||||||||||||
1992 | 30.26 | 35.83 | 38.93 | a | 45.57 | 50.74 | 58.30 | 61.16 | 59.94 | 58.10 | 51.10 | 32.77 | 34.32 | 46.42 | ||||||||||||
1993 | 37.32 | 35.18 | 37.32 | 44.40 | 51.19 | 58.20 | 61.71 | 61.13 | 55.93 | 49.10 | 38.67 | 33.76 | b | 46.99 | ||||||||||||
1994 | 32.71 | 34.39 | 38.61 | 44.47 | 51.32 | 63.52 | a | 63.29 | 62.84 | 57.17 | 48.45 | 38.53 | 34.55 | 47.49 | ||||||||||||
1995 | 33.74 | 38.46 | 40.16 | 42.27 | 49.26 | 57.17 | 62.61 | 62.77 | 58.27 | 49.77 | 42.03 | 34.80 | a | 47.61 | ||||||||||||
1996 | 33.68 | 39.10 | 38.65 | 45.20 | 56.03 | 64.17 | 62.74 | 60.81 | 55.47 | 48.61 | 40.72 | a | 35.00 | 48.35 | ||||||||||||
1997 | 33.23 | 32.82 | 42.03 | 42.03 | 53.97 | 58.77 | 62.45 | 61.32 | 59.47 | 46.87 | 39.33 | 31.42 | 46.98 | |||||||||||||
1998 | 32.81 | 30.75 | 36.17 | a | 40.50 | 51.10 | 58.27 | 63.16 | 61.77 | 60.20 | 50.45 | 40.90 | 33.97 | a | 46.67 | |||||||||||
1999 | 34.27 | a | 35.52 | a | 39.29 | 41.53 | 51.45 | 57.03 | 60.81 | 60.77 | 57.10 | 48.90 | 41.77 | 31.81 | 46.69 | |||||||||||
2000 | 35.10 | 37.52 | 36.26 | 45.67 | 54.94 | 60.30 | 62.30 | a | 60.00 | 58.30 | 48.29 | 33.07 | b | 33.45 | 47.10 | |||||||||||
2001 | 29.97 | 33.43 | 36.94 | 43.60 | 53.03 | 59.52 | c | 61.29 | 60.23 | 57.80 | 49.52 | 41.37 | 29.26 | 46.33 | ||||||||||||
2002 | 32.77 | 32.86 | 37.10 | 48.83 | 50.67 | a | 61.58 | f | 62.70 | d | 61.29 | 58.03 | 47.97 | 39.46 | b | 30.48 | 45.65 | a | ||||||||
2003 | 36.65 | 36.50 | d | 36.33 | a | 42.97 | 51.81 | 58.90 | 63.68 | 61.45 | b | 57.87 | 51.52 | 40.10 | 32.00 | a | 47.48 | |||||||||
2004 | 34.03 | 29.52 | 42.77 | 43.20 | 53.77 | 58.20 | 60.94 | 61.06 | 56.04 | e | 48.42 | 35.57 | 33.68 | 46.43 | ||||||||||||
2005 | 35.16 | 37.25 | 38.40 | a | 43.80 | 52.14 | b | 58.57 | b | 64.48 | 60.13 | 60.52 | a | 49.06 | 41.57 | b | 33.77 | e | 47.90 | |||||||
2006 | 33.97 | 35.44 | a | 39.93 | a | 43.50 | p | 52.69 | e | 59.82 | b | 63.12 | w | 59.09 | t | 56.13 | 48.33 | y | 40.12 | v | 31.36 | t | 46.33 | f | ||
2007 | 28.63 | d | 33.72 | c | 39.38 | b | 44.93 | b | 52.23 | a | 60.48 | a | 61.76 | f | 62.07 | b | 58.27 | 50.62 | e | 44.00 | a | 31.59 | b | 45.99 | a | |
2008 | 33.03 | 34.54 | a | 37.50 | e | 43.88 | e | 49.38 | b | 61.24 | a | 61.33 | a | 60.42 | 55.30 | c | 47.85 | d | 40.19 | c | 34.96 | d | 46.63 | |||
2009 | 34.76 | b | 35.25 | 40.48 | 43.83 | a | 53.27 | a | 58.79 | a | 62.81 | 62.42 | 57.38 | a | 47.03 | 41.04 | c | 28.46 | r | 48.82 | a | |||||
2010 | 31.47 | a | 31.89 | a | 36.42 | 43.41 | a | 48.41 | b | 59.71 | f | 63.60 | a | 61.93 | b | 59.72 | a | 49.71 | c | 39.43 | b | 37.46 | g | 46.60 | b | |
2011 | 29.56 | f | 29.88 | d | 40.56 | f | 48.36 | b | 49.81 | e | 60.00 | s | 63.79 | g | 64.44 | f | 60.42 | d | 52.39 | h | 39.13 | g | 32.70 | a | 44.23 | g |
2012 | 35.35 | h | 35.29 | a | 38.41 | b | 47.54 | d | 54.84 | f | 63.43 | b | 61.82 | c | 61.35 | e | 58.92 | e | 52.76 | f | 44.18 | h | 35.00 | b | 50.22 | d |
2013 | 29.59 | b | 31.13 | e | 43.19 | e | 45.40 | e | 52.60 | k | 65.08 | q | 61.55 | k | 58.90 | j | 55.50 | 46.62 | j | 41.28 | a | 32.62 | b | 39.82 | e | |
2014 | 35.73 | a | 40.04 | d | 41.47 | a | 45.96 | c | 53.08 | r | 63.55 | j | 61.96 | c | 60.32 | 58.90 | 51.31 | b | 41.00 | c | 35.75 | c | 47.25 | b | ||
2015 | 33.61 | 39.54 | b | 42.84 | 45.47 | 49.03 | b | 61.40 | 60.55 | 62.55 | 59.45 | a | 53.07 | b | 39.77 | 31.90 | a | 48.26 | ||||||||
2016 | 30.58 | 37.29 | a | 42.90 | a | 44.00 | 50.97 | a | 63.90 | a | 64.13 | 59.77 | 56.56 | c | 53.43 | a | 42.53 | 39.38 | b | 48.79 | ||||||
2017 | 34.83 | b | 38.75 | 43.67 | a | 45.50 | b | 51.97 | 62.13 | 61.58 | 62.19 | 58.40 | 54.37 | a | 47.33 | 37.93 | a | 49.89 | ||||||||
2018 | 36.68 | c | 39.25 | 40.80 | a | 50.23 | 54.00 | 62.69 | a | 64.94 | 62.42 | 60.34 | a | 50.29 | 39.45 | a | 35.45 | k | 51.01 | a | ||||||
2019 | 33.67 | y | 34.54 | 40.13 | 47.00 | a | 47.47 | a | 61.30 | 63.93 | a | 63.65 | 58.83 | a | 49.48 | b | 43.45 | a | 35.07 | b | 49.53 | a | ||||
2020 | 34.62 | b | 35.41 | 40.94 | ----- | z | 53.89 | v | 61.87 | 65.74 | 65.48 | 58.60 | 52.90 | a | 44.64 | e | 32.68 | c | 49.29 | b | ||||||
2021 | 32.63 | d | 35.61 | e | 39.42 | 47.73 | 54.16 | 64.60 | e | 62.06 | 62.00 | 58.11 | b | 50.88 | f | 44.73 | d | 40.50 | a | 49.23 | a | |||||
2022 | 34.16 | 33.57 | 39.50 | a | 48.10 | a | 54.73 | a | 63.20 | 63.42 | 61.68 | 60.00 | b | 48.10 | 37.24 | a | 35.83 | a | 48.29 | |||||||
2023 | 33.37 | a | 34.04 | 38.60 | a | 42.73 | 51.03 | 60.40 | 67.90 | 63.19 | 62.97 | a | 53.83 | a | 44.17 | 36.94 | 49.10 | |||||||||
2024 | 33.23 | 37.03 | 36.93 | c | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 35.73 | i | ||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 32.80 | 34.52 | 38.10 | 43.92 | 51.00 | 59.67 | 62.45 | 60.92 | 57.51 | 49.03 | 39.67 | 33.54 | 46.75 | |||||||||||||
S.D. | 2.23 | 2.89 | 2.79 | 2.86 | 2.30 | 2.30 | 1.56 | 1.48 | 1.79 | 2.39 | 2.94 | 2.55 | 1.18 | |||||||||||||
SKEW | -0.12 | -0.49 | 0.07 | 0.22 | 0.35 | 0.47 | 0.04 | 0.07 | 0.27 | -0.07 | -0.14 | 0.28 | 0.21 | |||||||||||||
MAX | 37.32 | 40.04 | 43.67 | 51.17 | 57.53 | 65.07 | 67.90 | 65.48 | 62.97 | 54.37 | 47.33 | 40.50 | 49.89 | |||||||||||||
MIN | 27.74 | 25.52 | 32.00 | 36.53 | 45.45 | 54.67 | 56.84 | 56.81 | 53.73 | 42.77 | 32.77 | 26.45 | 43.90 | |||||||||||||
YRS | 60 | 64 | 64 | 62 | 60 | 59 | 60 | 61 | 64 | 59 | 61 | 60 | 49 |